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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 622 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.491 × 5 =
  2. 2.161 × 9 =
  3. 3.786 × 9 =
  4. 4.546 × 7 =
  5. 5.194 × 9 =
  6. 6.255 × 8 =
  7. 7.308 × 3 =
  8. 8.766 × 7 =
  9. 9.986 × 5 =
  10. 10.302 × 8 =
  11. 11.185 × 8 =
  12. 12.305 × 5 =
  13. 13.191 × 9 =
  14. 14.254 × 4 =
  15. 15.589 × 9 =
  16. 16.183 × 7 =
  17. 17.266 × 8 =
  18. 18.151 × 6 =
  19. 19.344 × 5 =
  20. 20.746 × 6 =
  21. 21.357 × 3 =
  22. 22.811 × 5 =
  23. 23.854 × 7 =
  24. 24.656 × 4 =
  25. 25.321 × 4 =
  26. 26.776 × 5 =
  27. 27.969 × 6 =
  28. 28.582 × 3 =
  29. 29.628 × 4 =
  30. 30.695 × 3 =
  31. 31.379 × 4 =
  32. 32.153 × 4 =
  33. 33.631 × 5 =
  34. 34.302 × 9 =
  35. 35.392 × 7 =
  36. 36.226 × 5 =
  37. 37.293 × 5 =
  38. 38.522 × 4 =
  39. 39.685 × 7 =
  40. 40.788 × 7 =

Answer key

  1. 2455
  2. 1449
  3. 7074
  4. 3822
  5. 1746
  6. 2040
  7. 924
  8. 5362
  9. 4930
  10. 2416
  11. 1480
  12. 1525
  13. 1719
  14. 1016
  15. 5301
  16. 1281
  17. 2128
  18. 906
  19. 1720
  20. 4476
  21. 1071
  22. 4055
  23. 5978
  24. 2624
  25. 1284
  26. 3880
  27. 5814
  28. 1746
  29. 2512
  30. 2085
  31. 1516
  32. 612
  33. 3155
  34. 2718
  35. 2744
  36. 1130
  37. 1465
  38. 2088
  39. 4795
  40. 5516

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